Yazar "RTEÜ, Fen - Edebiyat Fakültesi, Fizik Bölümü" için FEF, Fizik Bölümü Koleksiyonu listeleme
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Dependency of c-lattice parameter, activation energy and its magnetic power constant on x in Y1-xYbx/2Gdx/2Ba2Cu3O7-y superconductors
Çelik, Şükrü; Öztürk, K.; Yanmaz, E. (Elsevier, 2008)To investigate the effect of x on c-lattice parameter, the activation energy, and the magnetic power constant of activation energy, the nominal composition of Y1-xYbx/2Gdx/2Ba2Cu3O7-y superconducting samples for x = 0.0, ... -
Deposition of CdSeTe alloys using CdTe-CdSe mixed powder source material in a close-space sublimation process
Çiriş, Ali; Başol, Bülent M.; Atasoy, Yavuz; Karaca, Abdullah; Küçükömeroğlu, Tayfur; Tomakin, Murat; Bacaksız, Emin (Springer, 2021)CdSexTe1-x films were deposited using a close-space sublimation (CSS) method and CdSe + CdTe mixed powders as the source material. Composition of the source was changed to obtain films with varying x values, and the resulting ... -
Design and comparison of superconducting rf gun cavities and beam dynamics for linear electron accelerators
Yıldız, Hatice Duran; Porsuk, D.; Çakır, Raşit; Tugay, H. (Elsevier Science Bv, 2019)Designs and simulations of 1.4, 1.5, 1.6, and 1.8-cell SRF gun cavities are studied at a linear accelerator gun system and they are compared with each other. We obtain high power beam from high energy electron beam produced ... -
Design and simulation of 31/2-cell superconducting gun cavity and beam dynamics studies of the SASE-FEL System at the Institute of Accelerator Technologies at Ankara University
Yıldız, Hatice Duran; Çakır, Raşit; Porsuk, D. (Elsevier Science Bv, 2015)Design and simulation of a superconducting gun cavity with 31/2 cells have been studied in order to give the first push to the electron beam for the linear accelerating system at the Institute of Accelerator Technologies ... -
A detailed research for determination of Bi/Ga partial substitution effect in Bi-2212 superconducting matrix on crucial characteristic features
Güner, Sait Barış; Zalaoğlu, Yusuf; Turgay, Tahsin; Özyurt, Ömer; Ülgen, Asaf Tolga; Doğruer, Musa; Yıldırım, Gürcan (Elsevier Science Sa, 2019)This multidisciplinary study paves way to investigate the crucial of fundamental characteristic properties including the bulk density, electrical, superconducting, flux pinning mechanism, crystal structure quality and ... -
Determination of heavy metal levels in some moss samples collected from near the highways in Burdur province
Batan, Nevzat; Özdemir, Turan; Saralıoğlu, Ekrem; Akçay, Nilay; Mendil, Durali (Çankırı Karatekin Üniversitesi, 2021)The main sources of atmospheric heavy metals deposition are agricultural activities, fossil fuels, central heating stations and the exhaust gases of motor vehicles. In this study, the total of 29 mosses samples were ... -
Determination of hypertension disease using chirp z-transform and statistical features of optimal band-pass filtered short-time photoplethysmography signals
Aydemir, Tuğba; Şahin, Mehmet; Aydemir, Önder (Iop Publishing Ltd, 2020)Hypertension is the condition where the normal blood pressure is high. This situation is manifested by the high pressure of the blood in the vein towards the vessel wall. Hypertension mostly affects the brain, kidneys, ... -
Determination of levitation force and pinning properties of (Sm123) 1-x(Yb211) x bulk superconductor depending on Yb211 doping ratio
Öztürk, K.; Çelik, Şükrü; Cansiz, A. (Wiley, 2009)The vertical force density curves of (Sm123) 1-x(Yb211)x high temperature superconductor (HTS) samples prepared by a meltpowder-melt-growth technique were measured during vertical and lateral traverses in zero field cooling ... -
Determination of mass attenuation coefficients for natural minerals from different places of Turkey
Han, İbrahim; Kolaylı, Hasan; Şahin, Mehmet (2011)The mass attenuation coefficients (?m) for some natural minerals taken from different places of Turkey were measured at various low photon energies. The Am-241 radioactive source and Zr and Cd secondary exciter are used ... -
Determination of mass attenuation coefficients, effective atomic and electron numbers for some natural minerals
The total mass attenuation coefficients (?m) for SiO2 {Quartz (1 1 0 1), Quartz (1 1 0 0) and Quartz (0 0 0 1)}, KAlSi3O8 {Orthoclase (0 1 0), Orthoclase (1 0 0)}, CaSO4·2H2O (gypsum), FeS2 (pyrite) and Mg2Si2O6 (pyroxene) ... -
Determination of natural radioactivity by gross alpha and beta measurements in tap waters in Rize province
Akbulut, Songül; Taşkın, Halim (Springer, 2015)The aim of the study to determine the level of gross alpha and beta activity concentrations in tap waters in dwellings of Rize province from North part of Turkey after 27 years from Chernobyl disaster. the activity ... -
Determination of natural radioactivity levels and gamma radiation attenuation coefficients in propolis samples and the study of its antioxidant properties
Dizman, Serdar; Yıldız, Oktay; Boyracı, Gülsüm Merve; Kolaylı, Sevgi (Walter de Gruyter Gmbh, 2020)Thanks to its rich content, propolis has been used to protect the hive from all kinds of external influences and for disinfection by bees. Furthermore, it is an important marker for monitoring environmental pollution because ... -
Determination of natural radioactivity levels of some concretes and mineral admixtures in Turkey
Baltaş, Hasan; Kiriş, Erkan; Ustabaş, İlker; Yılmaz, Esra; Şirin, Murat; Kuloğlu, Emrah; Güneş, Banu Erdoğan (Asian Journal of Chemistry, 2014)Nine concrete samples with or without mineral admixtures have been analyzed for their naturally occurring radionuclide of Ra-226, Th-232 and K-40 using HPGe gamma spectrometry. Also, concrete raw materials such as aggregate, ... -
Determination of natural radionuclides and some metal concentrations in human tooth samples in the Rize province, Turkey
Baltaş, Hasan; Şirin, Murat; Şenel, Firdevs; Devran, Fatih (Taylor & Francis Ltd, 2019)The main purpose of this study was to identify the concentrations of naturally occurring radionuclides (Ra-226, Th-232 and K-40) and some metals (Fe, Ni, Cu, Zn, Pb and Cd) in tooth samples collected from humans living in ... -
Determination of optimum Er-doping level to get high transparent and low resistive Cd1-xErxS thin films
Savaşkan Yılmaz, Sevil; Polat, İsmail; Tomakin, Murat; Bacaksız, Emin (Springer, 2019)Cd1-xErxS (x=0, 0.02, 0.04, 0.06, 0.08 and 0.10) thin films were produced by a chemical route on glass slides. the structural, morphological, optical and electrical properties of the grown samples were studied to obtain ... -
Determination of radioactivity levels and hazards of soil and sediment samples in Fi{dotless}rti{dotless}na Valley (Rize, Turkey)
Kurnaz, A.; Küçükömeroğlu, B.; Keser, Recep; Okumuşoğlu, Nazmi Turan; Korkmaz, F.; Karahan, G.; Çevik, U. (Elsevier, 2007)The natural radioactivity levels in soil and sediment samples of Fi{dotless}rti{dotless}na Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the Fi{dotless}rti{dotless}na ... -
Determination of radioactivity levels and heavy metal concentrations in seawater, sediment and anchovy (Engraulis encrasicolus) from the Black Sea in Rize, Turkey
Baltaş, Hasan; Kiriş, Erkan; Şirin, Murat (Pergamon-Elsevier Science Ltd, 2017)Seawater, sediment and fish (anchovy) samples consumed in the Rize province of the Eastern Black Sea region of Turkey were collected from five different stations. the radioactivity levels (Ra-226, Th-232. K-40 and Cs-137) ... -
Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey
Dizman, Serdar; Görür, Filiz Korkmaz; Keser, Recep (Ijrr-Iranian Journal Radiation Res, 2016)Background: Turkey, especially the northern part of it, was one of the countries which were contaminated by the Chernobyl accident. Rize is a city located in the Northeastern district of Turkey which was heavily influenced ... -
Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV
Baltaş, Hasan; Çevik, U. (Elsevier, 2008)The effective atomic numbers and electron densities of YBa2Cu3O7-? superconductor at 59.5, 65.2, 77.1, 94.6, 122 and 136 keV were calculated by using the measured mass attenuation coefficients. Measurements were made by ... -
Determination of the local structure of CsBi4-xPbxTe6 (x=0, 0.5) by X-ray absorption spectroscopy
Wakita, Takanori; Paris, Eugenio; Mizokawa, Takashi; Hacisalihoğlu, Muammer Yasin; Terashima, Kensei; Okazaki, Hiroyuki; Proux, Olivier; Kieffer, Isabella; Lahera, Eric; Del Net, William; Olivi, Luca; Takano, Yoshihiko; Muraoka, Yuji; Yokoya, Takayoshi; Saini, Nauramg L. (Royal Soc Chemistry, 2016)We have studied the local structure and valence electronic unoccupied states of thermoelectric CsBi4Te6 and superconducting CsBi3.5Pb0.5Te6 (T-c similar to 3 K) by extended X-ray absorption fine structure (EXAFS) and X-ray ...
